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Cleaning the front crank bearings?

I don’t know all the terminologies yet. Here is a picture I took of the front area. Grease looks dirty of what I can see. Difficult job?? One to do every year? Anyone know a site that shows all the parts and terms of said parts? Thanks,bhw.

Comments

wikipedia: The bottom bracket on a bicycle connects the crankset (chainset) to the bicycle and allows the crankset to rotate freely. It contains a spindle that the crankset attaches to, and the bearings that allow the spindle and cranks to rotate. The chainrings and pedals attach to the cranks. The bottom bracket fits inside the bottom bracket shell, which connects the seat tube, down tube and chain stays as part of the bicycle frame.

Finn59 ... not to hijack your post but do you mind telling me what the gizmo is attached to your bottom bracket by the single screw? Looks like an arm of some sort curving away with small circles embossed in the side. My used Rover Tandem had a piece of plastic held by the single screw ... rest was broken off and I just haven't tracked down what should be there. Thanks!

The pic of the bottom bracket bearings James R posted is what yours looks like. It really isn't rebuild-able. Too bad you don't live close I'd say bring it over and I'd show you how to check the bearings/bottom bracket. In order to check them you need to take the chain off the crank chainring so the crank can spin free. You can then spin the crank and feel for any roughness in the bottom bracket. You can also get a crank puller tool and pull the crank arms off and with your fingers spin the tapered axle of the bottom bracket and feel if it spins free or it is rough. {https://www.parktool.com/blog/repair-help/crank-removal-and-installation-three-piece}.

From your pic it looks like it could be grease or "anti-seize" that was put on the BB cups. Which is normal. Just wipe it off. Best wishes!

I tried. I tried to watch the video. But that man’s voice just was off. He didn’t fit the part. Looked like a con who would get 10 years off his sentence if he would just make a video. ( sorry I spoke my mind. Me brain’s on holiday)

I just had a lot of dirt around one side of
crank bearings. Thought it might be leaking. I wiped it down. After two rides the last two days it has not returned. I was wondering if I should pull it all apart. How often is this done? Rode fine so far. 11 miles. Need to make a repair stand next.

If I remember right the BB you have is not really meant to be serviced. To check if it is ok take the chain off it and spin the crank and see/feel how smooth it spins. If it is rough/grindy/spins slow. It may be time to replace it. BUT based on what you have said about the mileage, it should still be ok. Which you were closer, be most happy to help you.